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Pepsi [2]
3 years ago
14

Briefly differentiate "White Matter" & "Grey Matter".

Biology
1 answer:
evablogger [386]3 years ago
8 0

Answer:

The CNS, or central nervous system is comprised of neurons, the cell units that form it. These cells, in turn, are formed by their cell bodies, the dendrites on them and the terminal ends of the axons, which are like the connectors, or roadways, for neurons. When viewed on a microscope, brain tissue, particularly, looks stained with two different colors: grey, or pinkisk, for the grey matter, and whiter for the white matter, which are the axons. This is basically why the two are called grey matter and white matter of the CNS.

So one difference between these two matters is the color they display when viewed. The second is the parts of the neuron that form the two; while the white matter is formed from the neuronal axons, the grey matter is formed by the dendrites, cell bodies and axonal terminals. A third differentiation is that most synaptic activity takes place in the grey matter, while most conduction of information from the cell bodies is performed by the axons.

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Why is differential success among organisms with different variants of a trait necessary for natural selection?
sukhopar [10]

Answer:

This is because the organisms  of high variant will have   high  resistance  to selective pressures  and therefore   higher reproductive success  and   more selective advantage due to natural selection  to survive than others with  less  successful variant and low resistant to selective pressures.

Explanation:

3 0
3 years ago
What is an item included in the Bill of Rights?
CaHeK987 [17]
I think it’s the Right to assemble peacefully because it is the first amendment and it is included in the Bill of Rights.
3 0
2 years ago
Species A has a breeding call that is completely different from Species B. This difference in breeding call leads to
Minchanka [31]

Answer: The correct answer is option a.

Explanation:

Prezygotic isolation is a mechanism by which mating and fertilization is prevented. Thus, it prevents the formation of a zygote.

It can be achieved by various reasons such as temporal differences (difference in mating seasons), habitat isolation, behavioural differences (different mating rituals such as different dance patterns, voice calls, et cetera), mechanical isolation, et cetera.

Thus, different breeding calls prevent the species to interbreed with each which ultimately prevent the formation of zygote formation.

Hence, it is a type of prezygotic isolation.

3 0
3 years ago
How do weather observations become climate data?
Alex

Answer:

Weather observations become climate data when weather conditions are measured at thousands of locations every day for 30 or  more years.

Explanation:

According to the definition of climate, observations of the weather conditions are required for a very long period of time, even 30 years or more, registered in many places.

Weather refers to the presence of certain characteristics such as air pressure, temperature, humidity or wind speed in a given place in short periods, such as 24 hours.

Meteorologists refer to the climate taking into account the information collected from characteristics, such as temperature, air pressure or rain, in many places and for long periods of time, establishing an average value and with the possibility that this helps to predict weather behavior.

All weather information collected around the world over a period of 30 years or more becomes average values of temperature, air pressure, humidity, speed and wind direction that serve as climate data to predict the behavior of the weather in a determined place.

Learn more:

Meteorology and wheater brainly.com/question/5032766

5 0
3 years ago
when we view a stimulus with a specific property, neurons tuned to that property fire and will eventually become fatigued, an ef
olasank [31]

Selective adaptation is when we view a stimulus with a specific property, and the neurons tune to that property fire, eventually becoming fatigued.

Neurons tune to a particular attribute fire when we see a stimulus with that property; over time, this firing fatigues the neurons or causes them to adapt. The neuron's firing rate drops due to this adaptation and fires less often when the same stimulus is provided to it again right away.

For instance, a page of plain black text on a white backdrop will undoubtedly capture your attention and make it easier for you to identify important information. However, if you keep viewing pages and pages of mainly neon pink highlights, you'll probably grow accustomed to them, and they will eventually stop drawing your attention.

To learn more about selective adaptation: brainly.com/question/15876727

#SPJ4

4 0
1 year ago
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